batgrbproduct Analysis for Trigger=680655

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Mar 28 07:14:58 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger680655/GCN5_download_cron
======================================================================

  Trigger: 00680655      Segment: 000

  BAT Trigger Time: 480762983.744   [s; MET]
      Trigger Stop: 480762984.768   [s; MET]
               UTC: 2016-03-27T09:16:07.705440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 146.689296300309   Dec: 54.0168224464118  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.6
     Image Trigger?:     NO
     Rate S/N Ratio:     12.0830459735946  [ if not an image trigger ]
     Image S/N Ratio:    7.6

  Flight Position:   [ source = BAT ]
    RA: 146.689296300309   Dec: 54.0168224464118  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 146.697924775871   Dec: 54.0177680901612  [deg; J2000]  
        { 09h 46m 47.5s , +54d 01' 04.0" }
         +/- 0.956215428771884 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.321968359656109 [arcmin] (formal 1-sigma fit error)
    SNR: 32.4261871150337
 
  Angular difference between Flight and Ground position is 0.309422 arcmin
 
  Partial Coding Fraction: 0.8203125    [ including projection effects ]

  Duration
     T90: 27.7639999389648 +/- 9.22542076482328
        Measured from: -3.31199991703033
                   to: 24.4520000219345     [s; relative to TRIGTIME]
     T50: 9.81199991703033 +/- 1.28893130689523
        Measured from: 3.08800011873245
                   to: 12.9000000357628     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 4.13999998569489     
                   to: 5.13999998569489     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.2960000038147     
                   to: 42.8039999604225     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.917988   0.908100   0.588320   0.092607
           0.040182   0.041817   0.036413   0.032121 [error]
 Peak      0.064826   0.081552   0.064512  -0.000226
           0.006791   0.007123   0.006368   0.005054 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1    Band2    Band3    Band4    Band5    Total      
                       15-25    25-50   50-100  100-350   15-150   15-350   keV
Fluence   Power-law 2.61e-07 3.90e-07 4.36e-07 9.22e-07 1.36e-06 2.01e-06   erg/cm2
              Error 2.31e-08 2.07e-08 3.68e-08 1.65e-07 8.29e-08 1.95e-07   erg/cm2
Peak flux Power-law 6.13e-01 5.85e-01 3.88e-01 4.01e-01 1.75e+00 1.99e+00   ph/cm2/s
              Error 9.15e-02 5.67e-02 5.10e-02 1.03e-01 1.67e-01 1.94e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.61e-07 3.90e-07 4.36e-07 9.13e-07 1.36e-06 2.00e-06   erg/cm2
              Error 2.41e-08 2.05e-08 3.67e-08 2.85e-07 8.66e-08 3.02e-07   erg/cm2
Peak flux Cutoff-PL 5.52e-01 6.34e-01 4.03e-01 1.72e-01 1.70e+00 1.76e+00   ph/cm2/s
              Error 1.05e-01 7.20e-02 5.74e-02 1.34e-01 1.71e-01 2.14e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 5.56e-01 6.29e-01 4.03e-01 1.87e-01 1.71e+00 1.78e+00   ph/cm2/s
              Error 1.00e-01 7.17e-02 5.35e-02 -------- 1.71e-01 1.90e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.840    0.106    -      -           3.02e-03 1.81e-04   51.870 57
CPL   1.832    0.380     953.2    0.0      3.05e-03 0.00e+00   51.880 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.591    0.162    -      -           1.36e-02 1.40e-03   57.520 57
CPL   0.846    0.687      72.2   71.2      3.42e-02 3.40e-02   53.370 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the index)
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 22.016000 sec.
T50 in the 50-300 keV band: 6.016000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   49.100   -6.296   42.804
T90    27.764   -3.312   24.452
T50     9.812    3.088   12.900
Peak    1.000    4.140    5.140

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  146.6979 +54.0178 0.0060   16.5  -85.8       1.5404    32.4  TRIG_00680655       
------------------------------------------
 
Foreground time interval of the image:
 -6.296   8.557 (delta_t =  14.853 [sec])
Background time interval of the image:
-239.744 -168.584 (delta_t =  71.160 [sec])
-167.744  -6.296 (delta_t = 161.448 [sec])

Lightcurves

Notes:

1 s binning

From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval

64 ms binning

Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec

16 ms binning

From T100_start-5 s to T100_start+5 s

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

SN=5 or 10 sec. binning (whichever binning is satisfied first)

SN=5 or 10 sec. binning (T < 200 sec)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   -6.296 sec. to   42.804 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.83961     ( -0.104851   0.106834 )
Norm@50keV  : 3.02285E-03    ( -0.000181919   0.000179922 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.87 using 59 PHA bins.
# Reduced chi-squared =         0.9099 for     57 degrees of freedom 
# Null hypothesis probability =   6.675685e-01
 
Photon flux (15-150 keV)    in 49.1 sec: 0.423111 ( -0.0229314  0.0229891 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.36494e-06 ( -8.25636e-08  8.33006e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.296 sec. to   42.804 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.83208     ( -0.338457   0.421756 )
Epeak [keV] : 953.228      (   )
Norm@50keV  : 3.04985E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.88 using 59 PHA bins.
# Reduced chi-squared =         0.9264 for     56 degrees of freedom 
# Null hypothesis probability =   6.315312e-01
 
Photon flux (15-150 keV)    in 49.1 sec: 0.423110 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.3645e-06 ( -9.04717e-08  8.26549e-08 ) ergs/cm2
 
Band function
Time interval is from   -6.296 sec. to   42.804 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.45809   ( 1.46072   1.46072 )
beta        : -1.83897    ( 1.83919   0.104473 )
Epeak [keV] : 22.2234      ( -18.64 -18.64 )
Norm@50keV   : 6.89183E-03    ( -0.00422411   0.18162 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.87 using 59 PHA bins.
# Reduced chi-squared =         0.9431 for     55 degrees of freedom 
# Null hypothesis probability =   5.949424e-01
 
Photon flux (15-150 keV)    in 49.1 sec: 0.419235 ( 6.58076  -0.419235 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.7660  (  )
R^2/D10^2   : 0.102287  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         155.20 using 59 PHA bins.
# Reduced chi-squared =         2.7228 for     57 degrees of freedom 
# Null hypothesis probability =   4.980127e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.468e-07   1.490e-08
25- 50  4.513e-07   2.917e-08
50-150  3.706e-07   5.212e-08
15-150  9.686e-07   6.064e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.9805       (-19.5016      28.632)
Norm        : 1.83269       (-0.144594     0.16317)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.90 using 59 PHA bins.
# Reduced chi-squared =          1.016 for     57 degrees of freedom 
# Null hypothesis probability =   4.419159e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.352e-07   2.219e-08
25- 50  4.067e-07   2.789e-08
50-150  6.590e-07   1.947e-07
15-150  1.301e-06   2.043e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.63938        (-0.888314      1.00308)
R1^2/D10^2  : 1.18058        (-0.543261      1.18302)
kT2 [keV]   : 22.3123        (-3.45373      5.15961)
R2^2/D10^2  : 7.70179E-03    (-0.00409752   0.00688101)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.06 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     55 degrees of freedom 
# Null hypothesis probability =   4.724580e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.575e-07   4.890e-08
25- 50  3.781e-07   5.128e-08
50-150  7.003e-07   1.477e-07
15-150  1.336e-06   1.971e-07

Peak spectrum fit

Power-law model
Time interval is from    4.140 sec. to    5.140 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59083     ( -0.159876   0.163389 )
Norm@50keV  : 1.36481E-02    ( -0.001407   0.00139232 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.52 using 59 PHA bins.
# Reduced chi-squared =          1.009 for     57 degrees of freedom 
# Null hypothesis probability =   4.556597e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.74890 ( -0.166622  0.16668 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.27783e-07 ( -1.41761e-08  1.43713e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    4.140 sec. to    5.140 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.846145     ( -0.741084   0.632818 )
Epeak [keV] : 72.2370      ( -17.607 124.869 )
Norm@50keV  : 3.41993E-02    ( -0.0182101   0.0498363 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.37 using 59 PHA bins.
# Reduced chi-squared =         0.9530 for     56 degrees of freedom 
# Null hypothesis probability =   5.751723e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.70208 ( -0.1712  0.17118 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19958e-07 ( -1.5406e-08  1.5772e-08 ) ergs/cm2
 
Band function
Time interval is from    4.140 sec. to    5.140 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.846059   ( -0.511721   0.901 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 72.2218      ( -17.6 124.668 )
Norm@50keV   : 3.42014E-02    ( -0.0342013   0.0499705 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.37 using 59 PHA bins.
# Reduced chi-squared =         0.9703 for     55 degrees of freedom 
# Null hypothesis probability =   5.372621e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.70788 ( 5.29212  -0.17628 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19821e-07 ( -1.19814e-07  -1.5995e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.2437  (-1.54592  1.77225)
R^2/D10^2   : 0.307415  (-0.110866   0.171437)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.46 using 59 PHA bins.
# Reduced chi-squared =          1.271 for     57 degrees of freedom 
# Null hypothesis probability =   8.145894e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.143e-08   2.103e-09
25- 50  4.016e-08   5.035e-09
50-150  4.501e-08   9.580e-09
15-150  9.660e-08   1.240e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 160.757       (-57.0055      -160.698)
Norm        : 7.24889       (-0.731442     0.834963)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.51 using 59 PHA bins.
# Reduced chi-squared =         0.9564 for     57 degrees of freedom 
# Null hypothesis probability =   5.689279e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.850e-08   4.555e-09
25- 50  3.463e-08   1.237e-08
50-150  7.029e-08   3.885e-08
15-150  1.234e-07   6.104e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.67797        (-1.93394      2.22611)
R1^2/D10^2  : 2.05789        (-1.21441      4.21107)
kT2 [keV]   : 21.8176        (-4.86335      9.64645)
R2^2/D10^2  : 3.92723E-02    (-0.0296506   0.0679038)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.01 using 59 PHA bins.
# Reduced chi-squared =         0.9457 for     55 degrees of freedom 
# Null hypothesis probability =   5.894841e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.747e-08   8.575e-09
25- 50  3.575e-08   1.363e-08
50-150  6.741e-08   3.537e-08
15-150  1.206e-07   5.523e-08
Plot creation:
Mon Mar 28 07:19:25 EDT 2016